Argol. The tartar deposited from wines completely fermented, and adhering to the sides of casks as a hard crust. When purified it becomes Cream of Tartar.
Beck. A large vessel or tub used in dyeing.
Bois jaune. Fustic, yellow wood.
Carthamus. Safflower, an annual plant cultivated in South Europe, Egypt and Asia, for the red dye from its flowers.
Caustic Soda. Carbonate of soda, boiled with lime.
Coal Tar Colours. Colours obtained by distillation and chemical treatment from coal tar, a product of coal during the making of gas. There are over 2,000 colours in use.
Detergent. A cleansing agent.
Dip. Generally applied to immersing cloth, etc., in the blue vat.
Divi-Divi. The dried pods of Caesalpina coriaria growing in the West Indies and S. America; they contain 20 to 35% tannin and a brown colouring matter.
Dyer's Spirit. Aqua fortis, 10 parts; sal ammoniac, 5 parts; tin, 2 parts; dissolved together.